I'm working on a news reader that works in the opposite way of traditional news reading apps. It uses Twitter as a sort of enhanced RSS feed and ranks news based on how much they are shared in real-time, and lays them down in a newspaper-like format specifically designed for mobile devices.

It allows you to find what's important for people rather then what matters to newsroom's editors, and put you in a whole different point of view. I belive it's extremely interesting, and I'm trying to make the reading experience as enjoyable as possible.

The first raw version is available for iOS: http://newspo.st

I'm in the process of adding categorization and custom topic search as well.